- Patients could have received any number of therapies for relapsed or progressive disease, including re-treatment with original frontline regimen. A minimum of 2 weeks will be required from any prior therapy, including chemotherapy, immunotherapy and/or radiation. In addition, recovery to Grade less than or equal to 1 from all reversible toxicities related to prior therapy is required at study entry. No previous irradiation to the site of measurable or evaluable disease, unless that site had subsequent evidence of progression.